Question

01
The two forms of oxygen found in the atmosphere are-
alwater and ozone b)water and oxygen c) ozone and oxygen d) water
and carbon dioxide
02 When a body falls freely towards the earth then its total energy.
a) Increases b)decreases Srenains constant d)None
OR
In an oscillating simple pendulum-
a) work is done by the string. b) work is done by the mass.
c)work is done by the force of gravity. d)only energy transformation
takes place.
o
53 Which of the following contains maximum number of atoms -
m (a) 1 g of CO2 (b) 1 g of Nz (C) Vg of H; (d) 1 g of CH4. 6.
28
*
Name any two carbon containing molecules which are essential for living
beings?
OR
Name the two gases given out by burning of fossil fuels, which dissolves
in rain to form acid rain. Beim dioxil​

Answer 1

Answer:

1)C

2)A

3)B

Please mark brainliest

Answer 2

1. ozone and oxygen

2. ----------

3. 1g ok CO2

4.